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Tap water quality report

Upland, City of

EPA monitoring tested this supplier for 112 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

112
contaminants tested
24
detected
78,376
people served
1
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Local government
Counties served
San Bernardino

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

1
health-based violations
5
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1987-08-01 → 1987-08-31
MR Monitoring Resolved 2019-10-01
MR Monitoring Resolved 2019-10-01
MR Monitoring Resolved 2015-01-01 → 2015-12-31
MR Monitoring Resolved 2015-01-01 → 2015-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0055 µg/L 2/33 2025
Pfpea 0.0057 µg/L 2/33 2025
PFBS 0.0030 µg/L 1/33 2025

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
22600 µg/L 226%
of the EPA limit, in the worst sample — 10000 µg/L
 512/534 SYR4 2012–2019
TTHM
90 µg/L 113%
of the EPA limit, in the worst sample — 80 µg/L
 241/280 SYR4 2012–2019
Bromodichloromethane
28 µg/L
No EPA limit set
 217/284 SYR4 2012–2019
Dibromochloromethane
33 µg/L
No EPA limit set
 200/284 SYR4 2012–2019
Chloroform
23 µg/L
No EPA limit set
 196/279 SYR4 2012–2019
Bromoform
29 µg/L
No EPA limit set
 180/284 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
27 µg/L 45%
of the EPA limit 60 µg/L
 162/259 SYR4 2012–2019
Dichloroacetic Acid
11 µg/L
No EPA limit set
 149/259 SYR4 2012–2019
Dibromoacetic Acid
8.6 µg/L
No EPA limit set
 141/259 SYR4 2012–2019
Trichloroacetic Acid
16 µg/L
No EPA limit set
 109/259 SYR4 2012–2019
1,2-DIBROMO-3-CHLOROPROPANE
0.3400 µg/L 170%
of the EPA limit, in the worst sample — 0.2000 µg/L
 106/179 SYR4 2012–2019
Nitrate-Nitrite
22000 µg/L 220%
of the EPA limit, in the worst sample — 10000 µg/L
 79/87 SYR4 2012–2019
Tetrachloroethylene
24 µg/L 480%
of the EPA limit, in the worst sample — 5 µg/L
 64/92 SYR4 2012–2019
Trichloroethylene
3.1 µg/L 62%
of the EPA limit 5 µg/L
 58/92 SYR4 2012–2019
Fluoride
440 µg/L 11%
of the EPA limit 4000 µg/L
 30/30 SYR4 2012–2019
Arsenic
4.7 µg/L 47%
of the EPA limit 10 µg/L
 20/88 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 18/18 LCR 2023
Combined Uranium
8.344 µg/L 28%
of the EPA limit 30 µg/L
 16/17 SYR4 2012–2017
Monobromoacetic Acid
1.6 µg/L
No EPA limit set
 8/259 SYR4 2012–2019
Gross Beta Particle Activity
9.8 pCi/L
No EPA limit set
 3/10 SYR4 2012–2017
Copper
380 µg/L 29%
of the EPA limit 1300 µg/L
 1/34 SYR4 2012–2019
88 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GONZALES, RICHARD
Phone
909-291-2966
Email
rgonzales@uplandca.gov

Frequently asked questions about Upland, City of

Is Upland, City of tap water safe to drink?

EPA monitoring detected 24 contaminants in Upland, City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Upland, City of's water?

EPA monitoring detected Nitrate, TTHM, Bromodichloromethane, Dibromochloromethane, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Upland, City of serve?

Upland, City of reports serving 78,376 people in California, per its EPA record.

Has Upland, City of had any water quality violations?

The EPA has 5 violations on file for Upland, City of, of which 1 is health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.